Improved endless-chain propeller



s UNITED STATES PATENT OFFICE.'

W. W. BOWMAN, OF GRAVES COUNTY, KENTUCKY.

IMPROVED EN BLESS-CHAIN PROPELLER.

Speciiication forming part of Letters Patent No. 41,360, dated January Q6, 1864 antedatrd January 20, 1864.

' in combination with inside and outside paddles.

To enable others skilled in the artto make and use my invention, I will proceed to describe its construction and operation.

A represents a square frame, upon which four open or toothed side wheels, B, (two on each shaft,) revolve on their journals C, to be driven by a crank or other driving-gearing.

D are cross-stays, and part ot' the endless hinged chain extending horizontally across the Wheels. To each one of these stays D two blades or paddles, E, are firmly attached (one on each side, above and below the stay) to iron braces or rods G. running vertically through the stays D. Each stay has hinged eyes H at its ends, and a center pin, J, prol jecting beyond the eyes. Between each stay D are connecting-plates K, slightly curved, convex on the outside, and eyes at each end to tit in between the eyes H, so that the pins L may pass through the eyes Hand the eyes ot' connecting-plates K, forming a hinge or linked chain, while the pills L project beyoud the ends of the stays D, so as to drop between the teeth or cogs ofthe side wheels, B, and carry the endless chain with the square paddles around upon the wheels B to give the paddles E a propelling power of an easy and regular motion. The pins L are easily replaced when any ot' them might be accidentally broken.

I am aware that endless-chain propeller-s, operating on cylinders and drum-wheels, have been used, but these I do not claim; but

What I claim as my invention, and desire to secure by Leiters Patent, is-

The arrangement and construction of the endless-chain propeller (with inside and outside paddles) operating upon open toothed wheels, all in combination, as herein described, and for the purposes set forth.

NV. W. BOVMAN.

lVitnesses J. FRANKLIN REIGART, D. ROWLAND. 

